package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.constant.RedisConstant;
import com.atguigu.lease.common.context.LoginUser;
import com.atguigu.lease.common.exception.LeaseException;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.util.JwtUtil;
import com.atguigu.lease.model.entity.SystemUser;
import com.atguigu.lease.model.enums.BaseStatus;
import com.atguigu.lease.web.admin.service.LoginService;
import com.atguigu.lease.web.admin.service.SystemUserService;
import com.atguigu.lease.web.admin.vo.login.CaptchaVo;
import com.atguigu.lease.web.admin.vo.login.LoginVo;
import com.atguigu.lease.web.admin.vo.system.user.SystemUserInfoVo;
import com.wf.captcha.SpecCaptcha;
import com.wf.captcha.base.Captcha;
import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Service;

import java.util.UUID;
import java.util.concurrent.TimeUnit;

/**
 * @author Ruchan
 * @title LoginServiceImpl
 * @date 2024/11/9 09:44
 * @description 
 */
@Service
public class LoginServiceImpl implements LoginService {
    @Autowired
    StringRedisTemplate stringRedisTemplate;
    @Autowired
    SystemUserService systemUserService;

    @Override
    public CaptchaVo getCaptcha() {
        SpecCaptcha captcha = new SpecCaptcha(130, 48, 4);
        captcha.setCharType(Captcha.TYPE_DEFAULT);

        String code = captcha.text().toLowerCase();
        String img = captcha.toBase64();
        String key = RedisConstant.ADMIN_LOGIN_PREFIX +UUID.randomUUID();

        ValueOperations<String, String> stringStringValueOperations = stringRedisTemplate.opsForValue();
        stringStringValueOperations.set(key, code,RedisConstant.ADMIN_LOGIN_CAPTCHA_TTL_SEC, TimeUnit.SECONDS);

        return new CaptchaVo(img,key);
    }

    @Override
    public String login(LoginVo loginVo) {
        String captchaCode = loginVo.getCaptchaCode();
        if(captchaCode==null){
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_NOT_FOUND);
        }
        String captchaKey = loginVo.getCaptchaKey();
        String code = stringRedisTemplate.opsForValue().get(captchaKey);
        if (code==null) {
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_EXPIRED);
        }
        if(!captchaCode.toLowerCase().equals(code)){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_ERROR);
        }

        SystemUser systemUser = systemUserService.getByName(loginVo.getUsername());
        if(systemUser==null){
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_NOT_EXIST_ERROR);
        }
        if(systemUser.getStatus()== BaseStatus.DISABLE){
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_DISABLED_ERROR);
        }
        if(!DigestUtils.md5Hex(loginVo.getPassword()).equals(systemUser.getPassword())){
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_ERROR);
        }
        return JwtUtil.createToken(systemUser.getId(), systemUser.getUsername());
    }

    @Override
    public SystemUserInfoVo info(LoginUser loginUser) {
        SystemUser systemUser = systemUserService.getById(loginUser.getUserId());
        SystemUserInfoVo systemUserInfoVo = new SystemUserInfoVo();
        systemUserInfoVo.setName(systemUser.getName());
        systemUserInfoVo.setAvatarUrl(systemUser.getAvatarUrl());
        return systemUserInfoVo;
    }
}
